Answer:
you divide by -4 every time
7x+12+63=180
8x+12=180
Subtract 12 from both sides
8x= 168
=c=21
10x-40=50
Add 40 to both sides
10x=90
X=9
4x+72+2x-12=180
6x +60 =180
Subtract 60 from both sides
6x=120
X=20
Answer:
-15
Step-by-step explanation:
9/5=1.8
-27 divided by 1.8 equals -15
and to check you can do -15×9/5
and that gives you -27
Don’t understand this kind of math
